Represents percentage of paid premium to purchase debt.

No definition available.

Name:	ohi_DebtInstrumentPurchasePremiumPercentage
Namespace Prefix:	ohi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents prepayments and other costs associated with refinancing.

+ References

No definition available.

+ Details

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Namespace Prefix:	ohi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
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- Definition

This element represents number of facilities acquired in deed-in-lieu foreclosure.

+ References

No definition available.

+ Details

Name:	ohi_NumberOfFacilitiesAcquiredViaDeedInLieuForeclosure
Namespace Prefix:	ohi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Fair value amount of debt instrument that was repurchased.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The cash outflow for the purchase of amounts due from customers, clients, lessees, borrowers, or others under the terms of its agreements therewith.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.8)
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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Balance Type:
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- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ohi_GeneralElectricTermLoanMember
Namespace Prefix:
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Balance Type:
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- Details

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BORROWING ARRANGEMENTS - Refinancing related costs (Narrative) (Detail) $ in Thousands		12 Months Ended
	Apr. 04, 2017 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($) facility	Apr. 28, 2017	Mar. 11, 2014 USD ($)
Financing Activities and Borrowing Arrangements [Line Items]
Write off of deferred financing costs and unamortized premiums due to refinancing			$ 10,195	$ 301
Purchased of loan			7,183	2,080
Prepayment and other costs associated with refinancing			$ 11,770	$ 1,812
4.95% notes due 2024
Financing Activities and Borrowing Arrangements [Line Items]
Interest rate		4.95%	4.95%			4.95%
Long-term Debt, Gross	$ 400,000					$ 400,000
Omega Credit Facilities 2014 [Member]
Financing Activities and Borrowing Arrangements [Line Items]
Write off of deferred financing costs and unamortized premiums due to refinancing			$ 5,500
Mortgage term loan
Financing Activities and Borrowing Arrangements [Line Items]
Number of facilities acquired via a deed-in-lieu foreclosure \| facility				3
Prepayment and other costs associated with refinancing				$ 1,800
Purchased of loan				$ 180,000
Percentage of premium paid to purchase debt				1.00%
5.875% notes due 2024
Financing Activities and Borrowing Arrangements [Line Items]
Write off of deferred financing costs and unamortized premiums due to refinancing	$ 4,700
Interest rate					5.875%
Prepayment and other costs associated with refinancing			$ 11,800